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Published on: May 31, 2024
The vasculature in chagas disease
Cibele M Prado1, Linda A Jelicks, Louis M Weiss
1Department of Pathology, Laboratory of Cellular and Molecular Cardiology, University of São Paulo, Ribeirão Preto, Brazil.
Insights
Chagas disease cardiomyopathy may stem from microvasculature damage, not just the heart muscle. Understanding these vascular changes could reveal new treatment targets for Chagas disease and other cardiomyopathies.
Area of Science:
- Cardiovascular Medicine
- Infectious Diseases
- Pathology
Background:
- Cardiovascular involvement in Chagas disease is recognized.
- The role of the microvasculature in Chagasic cardiomyopathy remains understudied.
Purpose of the Study:
- To review evidence linking microvascular alterations to Chagasic cardiomyopathy.
- To explore potential therapeutic targets for intervention.
Main Methods:
- Literature review focusing on microvascular changes in Chagas disease.
- Discussion of specific vasoactive substances and platelet aggregation.
Main Results:
- Evidence suggests microvascular damage contributes significantly to Chagasic cardiomyopathy.
- Endothelin-1 and thromboxane A(2) are implicated in vascular spasm and platelet aggregation.
Conclusions:
- Microvascular alterations are a key factor in Chagasic cardiomyopathy pathogenesis.
- These findings may inform treatments for Chagas disease and other cardiomyopathies.
Abstract:
The cardiovascular manifestations of Chagas disease are well known. However, the contribution of the vasculature and specifically the microvasculature has received little attention. This chapter reviews the evidence supporting the notion that alterations in the microvasculature especially in the heart contribute to the pathogenesis of chagasic cardiomyopathy. These data may also be important in understanding the contributions of the microvasculature in the aetiologies of other cardiomyopathies. The role of endothelin-1 and of thromboxane A(2) vascular spasm and platelet aggregation is also discussed. Further, these observations may provide target(s) for intervention.
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